Quantitative assessment of reproductive condition of the Antarctic clam, Laternula elliptica (King & Broderip), using image analysis SCIE SCOPUS

Cited 20 time in WEB OF SCIENCE Cited 22 time in Scopus
Title
Quantitative assessment of reproductive condition of the Antarctic clam, Laternula elliptica (King & Broderip), using image analysis
Author(s)
Kang, DH; Ahn, IY; Choi, KS
Publication Year
2003-09
Abstract
We quantitatively assessed the reproductive state of the Antarctic clam, L. elliptica, collected from a small cove on King George Island in the spawning season. Using computer-based image analysis, percentage gonad area (PGA), percentage egg area within a follicle (FI), and mean oocyte diameter (MOD) were determined from gonadal cross-sections prepared for histological studies. These indices were then compared on the basis of scores from 1 to 6 on a conventional maturity index (MI), which is scored using subjective criteria determined by microscopic examination. Clams collected during two different spawning periods were analyzed. The FI and MOD values differed significantly between the two groups, but MI and PGA values did not, suggesting that FI and MOD are the more reliable and sensitive indicators for differentiating reproductive condition. This study also showed that a planimetric technique using computer-based image analysis is fast, convenient to use, and better than the conventional MI at providing reliable quantitative information about L. elliptica reproduction. We also investigated whether these indices varied with body size. The FI and MOD values peaked in clams of 76 to 85 mm shell length, indicating that clams of this size have the highest reproductive output at spawning time. Therefore, animals of a standard size (76 to 85 mm) should be monitored seasonally or over a longer term.
ISSN
0168-8170
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/5458
DOI
10.1080/07924259.2003.9652555
Bibliographic Citation
INVERTEBRATE REPRODUCTION & DEVELOPMENT, v.44, no.1, pp.71 - 78, 2003
Publisher
INT SCIENCE SERVICES/BALABAN PUBLISHERS
Subject
CRASSOSTREA-GIGAS THUNBERG; GEORGE-ISLAND; PACIFIC OYSTER; SIZE; BAY; ANOMALODESMATA; BIVALVIA; OUTPUT; SOUND; CYCLE
Keywords
Antarctic bivalve; Laternula elliptica; size; egg diameter; maturity index; King George Island; spawning
Type
Article
Language
English
Document Type
Article
Publisher
INT SCIENCE SERVICES/BALABAN PUBLISHERS
Files in This Item:
There are no files associated with this item.

qrcode

Items in ScienceWatch@KIOST are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse